For a world to maintain an atmosphere long enough for life to gain a foothold, it seems it needs to be at least as big as ...

Thomas Mulligan investigates the scientific limits and cosmic distances from which potential extraterrestrial civilizations ...

Between biosignatures and technosignatures lie noosignatures, and some scientists think they could help us find alien life ...

A rocky world orbiting within its star’s habitable zone may be surrounded by a helium-rich atmosphere, providing the ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature ...

Geeks rejoice. A new study suggests that if extraterrestrial life exists, it’s likely being lived on this exoplanet.

A Durham University survey reveals 86% of astrobiologists believe alien life likely exists, despite no confirmed evidence.

New research suggests AI can be repeatedly fooled into mistaking non-life for life.

A new policy paper proposes a lunar biocontainment facility for extraterrestrial samples. This secure lunar laboratory would analyze samples before Earth transport. Such a system significantly reduces ...

But we think all of the really important, essential ingredients are there.” The question remains whether LHS 1140 b is “bare ...

The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

The creator documented the tribute to his dog Oscar by recording the entire journey with an attached 360-degree camera.